I'm at my wits end on this one looked/Searched/Played/Experimented and I need your help if you can.This page is going to be primarily used on a mobile device using Win Mobile 5 Need to Accomplish:Prevent Postback(serverside) of Page using JavaScript (Postback's slow down the page on mobile device)
I had someone ask me this question:how do you redirect to another page without causing hitting the server, or without causing a postback (i'm trying to remember the exact wording)?I assume you would us Javascript window.location?
I already know this solution. (transfer the slow loading page to a loading-interim-page which shows the animation and then redirects to the actual page)But I would really like to solve this without a redirecting page.
I have an ASP.NET 3.5 intranet website which has a default page with a menu and when the user clicks on a menu item, I display the page for that menu item in an iframe embedded within the default page. but if the user types the URL of a page directly in the browser, then I would like to redirect him to the default page, because all the content pages do not have a menu. (Master Pages will solve this issue, but I can't use Master page here for a reason and don't want to go into those details). how to find out if user has arrived at the page directly by typing the URL or by clicking on the menu item, so that I can decide whether to redirect or not? Is this possible to find out? btw this is an intranet site and no login is required.
i place the onClick event in asp buttons. but it is showing error like
Too many characters in character literal
my code is
<asp:Button ID="Button1" runat="server" Text="Button" onClick="alert('The button was clicked.');" />
actually my requirement is when i click on the button i want to display some message and when we press ok then it is redirect to another page is it possible
I'm sure this is fairly straightforward but i'm having trouble getting it to work. I want to add a javascript function to my page, but only when the page postsback. So I have a button that calls some server-side code, and when it is finished and the page is re-loading I want the javascript function to be called. Thinking about this i guess I could just add a hidden variable and set it when the button is clicked, but i think i'd rather just insert the javascript onto the page when it is loading back. Is this possible, or even a good way to do it? Edit: Okay this is my OnClick method in the C# code.
i am using asp.net 4.0 iis 7.5 microsoft visual studio 2010
what i want is keep whole page (browser) scroll position (not a div or panel) when asynchronous postback happened (update panel) how can i do this actually i had a function which can keep div scroll bar position after postback like this
<script type="text/javascript"> var xPos, yPos; var prm = Sys.WebForms.PageRequestManager.getInstance(); prm.add_beginRequest(BeginRequestHandler); prm.add_endRequest(EndRequestHandler); function BeginRequestHandler(sender, args) { xPos = document.getElementById('Main').scrollLeft; yPos = document.getElementById('Main').scrollTop; } function EndRequestHandler(sender, args) { document.getElementById('Main').scrollLeft = xPos; document.getElementById('Main').scrollTop = yPos; } </script>
bu i could not find browser scroll bar id to get its values to get with document.getElementById
I have a simple form (textbox, submit button) which is wrapped in an update panel.
[Code]....
I type some text in the textbox, click submit, then the server creates a database record and returns an object, which has properties like ID, Name, URL, Blah, etc. These are the values that the script requires.
So if i were to call a web service from the client-code, in order to get the values that were just created, i would need to do some hacks (get last record modified that has the value of the textbox). Not ideal, and neither is two AJAX calls for one form post. (update panel postback, then web service call).
I have an external javascript file which I include to my page on the code behind (as seen below).
My problem is, when I my page makes a postback (not partial one), I check the loaded scripts by using FireBug, and I cannot see the javascript file in the list after the post back. I asusmed once it is included to page on the first load, browser will be caching it so that I do not need to re-include it.
all elements are in an updatepanel. click on a list of <tr> to fire a JavaScript function to add new <option> to the asp dropdownlist. But, when I click on other buttons to callback to the server, I get an error message:
Uncaught Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback or callback argument. Event validation is enabled using
in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. I understand the problem. I need to let server side know the change of the dropdownlist before any other postback. Set validation as false won't work in this case, the dropdown will lose the new item anyway. I did some researches, and the possible solutions:
1)Using ViewState? Request Form? could anyone give an example?
2)Add dropdownlist item in server side. But I want to make the whole tr row clickable to fire the event. Could I click on tr and fire eg. its first child linkbutton or a linkbutton in somewhere else.
3)I've tried Jquery.ajax and webmethod , it can fire server event but since all method are static (shared) , it doesn't allow me to edit the downdownlist instance.
I am having problems selecting the text within a TextBox in an UpdatePanel in IE 8. Consider a very simple page that contains a single UpdatePanel. Within that UpdatePanel there are two Web controls:
A DropDownList with three statically-defined list items, whose AutoPostBack property is set to True, and A TextBox Web control
The DropDownList has a server-side event handler for its SelectedIndexChanged event, and in that event handler there's two lines of code:
After it is done, I can't click on my calendar control. I was hoping to add somethign that would force a refresh in the script, but nothing I do works.
if ((Request.QueryString["UbytovaniePrispevokID"].ToString()) == "")[code]......
What i want to do is.. I have one main page with new posts Each subject of the new post is the link to Another page where is Specific post and coments and user can leave a coment.
What I want is when the Request.QueryString["UbytovaniePrispevokID"].ToString()) == "" or null I want to redirect to error page ...
what I want to do is when the user enters values on the page I want to be able to change "valueA" and "valueB" in the URL without redirecting, refreshing or posingBack. Does anyone know how to do this?
I have a <asp:Wizard> that is only applicable for a logged-out user. If the user is currently logged in, he/she is redirected to another page. On one of the wizard steps, as part of the wizard, I ask for credentials via the <asp:Login> control and log in the user. This presents a problem.
According to MSDN: "When a user uses the Login control to log in to a Web site, all data in the view state and all post data is lost. Do not perform actions in the LoggedIn event that rely on the view state."
Because of this, my Wizard control forgets the step it's on after the login process. MSDN recommends: "If you embed the Login control in a WizardStep object, explicitly set the ActiveStepIndex property in a Page_Load event handler if the user is authenticated. The Wizard control does not automatically advance to the next WizardStep object in this scenario."
However, because all view state is lost, the redirect for logged-in users kicks in, sending the user away from the page. What's the best way to determine, at page load, which of the states the user is in?
Already logged in some time ago; needs to be redirected. Was just logged in from inside the wizard; needs to reach the next wizard step.
I was wondering how a page can keep the Accordion from refreshing it's selected index in a postback or when redirecting to itself. I wanted it to keep the index value of the last open page and somehow coax the accordion to have that open instead.
This has been a nagging issue for some time, but very sporadic and difficult to isolate.
From time to time, browsers that have authenticated on a web application, have been open for a while, have logged in and out of the same web application multiple times, have multiple tabs, are pretty much any browser (Chrome, IE, Firefox, Safari), and seemingly at random, lose their ability to retain an AuthCookie after being set and followed by a redirect. Closing the browser and starting a new session resolves the issue, as does opening up a different browser and attempting to authenticate.
Our team uses forms authentication for all of our websites and web application. This is a pretty typical setup where a login form is displayed, the user enters credentials and a cookie is set on the click event of the postback, then a redirect occurs to the same page where the cookie is then referenced and used to complete authentication.
In this situation
FormsAuthentication.FormsCookieName = ".WebAuth"
Within Event:
FormsAuthenticationTicket authTicket = new FormsAuthenticationTicket(1, Username, DateTime.Now, DateTime.Now.AddMinutes(SessionTimeout), false, Username); HttpCookie faCookie = new HttpCookie(FormsAuthentication.FormsCookieName, FormsAuthentication.Encrypt(authTicket)); Response.Cookies.Add(faCookie); Response.Redirect(Request.RawUrl, true); After the redirect, on PreInit: HttpCookie authCookie = Request.Cookies[cookieName];
At this point, the authCookie variable is typically not null, but in these isolated circumstances that I've outlined above, the cookie comes back null after the redirect.
This happens very randomly, sometimes weeks before affecting one of our developers. As I said, restarting the browser resolves the issue.
Today I had it happen on our dev server while using Chrome. I had logged into the application, allowed the application to session timeout, and then attempted to login again. The attempted login then failed to set the cookie. I remotely attached Visual Studio to the process on the server to begin debugging. The entire time I could step through my code, even deploy new code versions to the server with updates, restart the app, restart IIS on the server, attach and reattach to the project, and the issue persisted in Chrome. In Firefox, I was able to authenticate without issue.
From Chrome, the login would validate, attempt to set a Response Cookie as outlined above. Prior to redirect, I could see the properly set Response Cookie, as well as its counterpart in the Request Cookies. However, on each redirect after a seemingly successful login, the Response and Request Cookie are gone.
I enabled Trace on the application to view the cookie collection:
There is a .WebAuth in the Request Cookies Collection, as well as ASP.NET_SessionId and several ASPSESSIONIDxxxxxxxx, but when the page loads, only the ASP.NET_SessionId and ASPSESSIONIDxxxxxxxx cookies are available in the Request.Cookies scope, no sign of the .WebAuth. However, in the page's Trace information after render, there multiple .WebAuth cookies listed, it is just that the page seems to have no access to them.
Primarily, on a working version after authentication there is both a .WebAuth Response and Request Cookie in the page's Trace info. But on a non functioning browser window, the Response Cookie is absent.
Has anyone else had any experience with this? It is such a nagging issue, and so sporadic, but I would love to be able to resolve it. My concern is that it may be affecting users and we would have no knowledge since the description of the issue is so convoluted.
When an asynchronous postback happened inside update panel, another postback happens also for MasterPagenot only update panel embedded page .I want to prevent this MasterPage postback . is this possible ?think like i have a MasterPage and another page which is test.aspx which is content page of MasterPagei have update panel at test.aspxwhen asynchronous postback happens at this test.aspx update panel it also loads MasterPage Page_Loadi want to prevent this (it should not also load MasterPage Page_Load)
